As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING APPROACH AFTER GEAR SELECTED DOWN, CREW RECEIVED A BRAKE AMBER CAUTION MESSAGE. CHECK LIST FOLLOWED, UPON LANDING PILOTS EXPERIENCED VERY WEAK BRAKING ACTION AND PARKING BRAKE WAS USED TO SLOW AIRCRAFT TO EXIT RUNWAY. DURING LAST 100 FEET OF TAXI, RED BRAKE LIGHT MESSAGE ILLUMINATED. MAINTENANCE EVALUATION DID NOT FIND ANY HARD FAILURES OR FAULTS, OEM TECHNICAL SUPPORT ADVISING REPLACEMENT OF BOTH LT AND RT BRAKE STEERING CONTROL UNITS (BSCU) P/N OFF C203470060700 S/N OFF - LEFT 619 AND RIGHT 414